Spring-brush for timers



W. J. SPIRO.

SPRING BRUSH FOR TIMERS. APPLlCATl-ON FILED MAY 17, I919. RENEWED SEPT. 23, 1921. 1,397,150.

Patented Nov. 15, 1921.

. ing havin UNITED sTArE-s Parent crates.

WALTER J. 'SPIRO, 01? -WHITE PLAINS, NEW YORK, ASSIGNQR T0 H'UIDSQLT MOTOR SYECIALTIES COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CQRPQRATION OF PENNSYLVANIA.

SPRING-BRUSH FOR Application filed May '17, 1919, Serial No. 297,793.

To aZZ whom it may concern Be it known that I, WALTER J. Smo, a citizen of the United States, residingyat WVhite Plains, in the county of l vestche'ster and State of New York, have invented a certain new and useful Improved $pringtj Brush for Timers, of which the following is a specification.

This invention has for an object to provide a timer brush of the sliding contact type which may be applied to a timer casa worn, pitted or like bearing surface which brush is so constructed that at least its outer end may be moved in a direction substantially parallel with the horizontal axis of its complemental hub whereby in time said brush, through adjust-- ments, will cause the welts, ridges and the like upon the casing bearing surface to become perfectly smooth. Other and further objects relate to the provision of general details of construction and in the new and novel arrangement of parts as will hereinafter he described.

The invention consists of the improvements hereinafter described and finally claimed.

The nature, characteristic features and scope of the invention will be more fully understood from the following description taken in connection-with the accompanying drawings forming part hereof, and in which:

Figure 1. is a view in elevation of a spring brush embodying features of the invention.

Fig. 2, is a view in cross section thereof. Fig.3, is a detail view in elevation of the hub portion of the brush.

Fig. 4, is a view in ele'vzt ion illustrating in full and in dashed lines several positions of the brush with respect to its hub, and

Fig. 5, is a disassembled view in elevation of a modified form of brush and hub.

For the purpose of illustrating my invention I have shown in the accompanying Specification of Letters Eatent.

Patented Norm 15,1921. Renewed September 23, 1921. Serial No. 502,688.

7 10 thereof, which fits over the cam shaft of an internal combustion engine, is con= structed of sheet steel and is bent to form a split tube-like portion. That part of the hub adjacent the split portion of the hub is substantially flat, is slotted as at 11 and has a keeper 12 struck up therefrom immediately adjacent said slot. That part of the hub adjacent said flat portion has struck up therefrom a lip 13 which is bent. outwardly into substantial alinement with said fiat portion so that in effect said lip is a continuation of said flat portion. The arm 14 of the brush is tempered spring steel and one end thereof passes beneath the keeper 12 and through the slot 11 in the hub 10 and is secured to the lip 13 so that at least the outer end of said arm ma be moved in a direction substantially parallel with the longitudinal axis of the hub 10.

In Figs. 1 to 4 inclusive the lip 13 is slotted as at 15 and a screw 16 is passed through the arm 1d and said slot and a nut 17 employed for securing said arm in the position shown in Fig. 1, or in the positions shown in Fig. 4. Thus the arm may be adjusted to one of several positions longitudinally of the hub so that the steel brush 18 carried by the free end of arm 14: may be caused to track upon the bearing surface of a timer casing in several paths in contradistinction to a single path.

In Fig. 5 the under side ofthe arm 14 is provided with a projection 19 and outer side of lip 13 is provided with a series of depressions 20. The arm and lip are apertured so that these parts may be pivoted together. By moving the arm 14 to the right or left the projection 19 may engage within a depression to interlock said parts together. In both instances keeperLZ, acts to prevent undue movement of arm 14. v

It will now be apparent that I have devised a novel and useful construction which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description and while I have in the present instance shown and described the preferred 1 embodiment thereof which has been found in practice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification in various particulars within the scope of the claims.

above described the -parallel with the longitudinal axis of said hub 2. A device of the character stated com-- prising a hub, an arm carrying a brush extended from said huh said brush lying in a plane substantially parallel to a plane passing through that part of the hub which supports said armand means for permitting shifting of at least the outer end of said arm in a direction substantially parallel with the longitudinal axis of said hub;

3. A device ofthe character stated comprising a hub, an arm carrying a brush extended from said-huh and means for permitting of adjustable movement of at least the outer end of said armin a direction. substantially parallel with the longitudinal axis of said huhc i. A device of the character stated comprisin a hub, an arm carrying a brush pivota ly secured to said hub so as to be capable of being shifted in a direction substantially parallel with. the longitudinal axis of said huh.

5. A device of the character stated com prisin a hub, an arm. carrying a brush pivota ly secured to said hub so that at nsseg'iec "least the outer end of said arm may be capable of being shifted in a direction substantially parallel with the longitudinal axis of said hub and means for permitting shifting of said arm in an adjustable manner.

6. A device of the character'stated comprising:l a hub, an arm carrying a brush pivota y secured to said hub, means for permitting shifting of at least the outer end of sa d arm in a direction substantially parallel with the longitudinal axis of said hub and means for limiting the movement of said arm.

7. A device of the character stated comprising a hub having a substantially fiat portion, an outwardly curved spring arm carrying a brush movably supported by the fiat portion of the hub and means between said arm and flat portion for permitting movement of at least the outer end of said arm in a direction substantially parallel with the longitudinal axis of said hub.

8. A device of the character stated comprising a split hub havin a substantially fiat portion said hub having struck there from a lip in substantial alinement with said fiat portion, an outwardly curved spring arm carryin a brush pivoted to said lip and means for permitting movement of said arm in a direction substantiall parallel with the longitudinal axis of said hub WALTER a. srnio. 

